html,body{height:100%}

.app-loading {
    text-align: center;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    height: 100%;
    margin-bottom: 0px;
    padding: 30px 50px;
    margin: 0px 0;
  }
  .app-loading-spin{
    text-align: center;
    height: 100%;
  }